RihannaGranGran

Still reeling from the loss of grandmother Clara "Dolly" Braithwaite, Rihanna has pulled out of the Rock In Rio festival in Madrid, Spain, Contact Music reports. The R&B superstar had been slated to headline Thursday's (July 5) concert, and as organizers look to book a…

Rihanna is mourning the loss of her grandmother Clara "Dolly" Braithwaite, who has died following a battle with cancer, Contact Music reports. The R&B superstar expressed her grief via Twitter, offering a possible explanation for the disastrous performance she gave Saturday…